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Full-featured courier tracking platform with separate portals for shippers, admins, and riders.
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
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Roule.io is a multiplayer board games site. Users can play uno, monopoly, and ludo with advanced bots or with friends.
The entire backend is written in Golang and can handle 50,000 concurrent rooms at any point of time with low compute costs $35/month. The game also has multiple skins tokens and more to improve user engagement.
Tech Stack : Golang, React, TypeScript, TailwindCSS
Wow this is impressive! Nice work!
Your Meta Pixel is tracking purchases,
but do you know which ones are from new customers?
Most businesses can’t separate new vs returning buyers.
And that means… poor targeting and wasted ad spend.
I set up advanced tracking to identify:
• New customer purchases
• Accurate server-side events (CAPI)
• Clean, deduplicated data
So you can optimize for real growth, not just numbers.
If your tracking isn’t precise, your scaling won’t be either. 🔥
Meta Ads ExpertFacebook PixelGoogle Tag ManagerFacebook Ads ManagementSocial Media MarketingGoogle AnalyticsData AnalysisSales-Driven MarketingMarketing Analytics
Looking for freelance work (Backend / AI / Full-Stack)
I’m currently open to freelance projects — mainly backend-heavy systems, AI integrations, or full-stack builds.
I’m a Software Engineer working with Java (Spring Boot), Python, and SQL, and I’ve built systems that are already used in real environments (not just demos).
Some of the work I’ve done:
• Built AI-powered document processing systems (LLM + FastAPI + validation pipelines) to extract and structure data automatically
• Developed a financial AI chatbot (RAG-based) that answers queries using real documents and reduces manual workload
• Created a real-time network anomaly detector using Python (Scapy + Suricata) for monitoring suspicious traffic
• Built API integration middleware (Java Spring Boot) connecting multiple systems with retry logic and structured logging
• Developed a smart inventory system with analytics (Node.js + PostgreSQL + MongoDB) used for tracking stock and sales trends
• Implemented ETL pipelines for data migration and reporting (Python + SQL + Pandas)
• Built an automated web security scanner detecting SQLi/XSS issues before deployment
• Worked on computer vision models for defect detection and image classification (CNN + TensorFlow)
• Developed full-stack apps (Flask / FastAPI + React) with real-time API integrations
I’ve also worked in enterprise environments, handling:
production deployments
debugging live systems
API integrations across teams
working with international clients
What I usually work on:
Backend systems & APIs
AI features (chatbots, automation, document processing)
Data-heavy applications
System integrations
MVPs that need to actually scale
I’m not here to just “build features” — I focus on making systems reliable, usable, and production-ready.
If you need someone who can:
✔️ understand your system
✔️ build fast
✔️ and not break things in production
send me a message.
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